<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>CSS Masking: mask-repeat: repeated mask layer image</title>
    <link rel="author" title="Astley Chen" href="mailto:aschen@mozilla.com">
    <link rel="author" title="Mozilla" href="https://www.mozilla.org">
    <style type="text/css">
      div.outer {
        width: 128px;
        height: 128px;
        position: relative;
        border: 1px solid black;
      }

      div.inner {
        width: 50px;
        height: 50px;
        position: absolute;
        background-color: purple;
      }

      #pos-top-left { left: 0; top: 0; }
      #pos-top-right { right: 0; top: 0; }
      #pos-bottom-left { left: 0; bottom: 0; }
      #pos-bottom-right { right: 0; bottom: 0; }
    </style>
  </head>
  <body>
    <div class="outer">
      <div class="inner" id="pos-top-left"></div>
      <div class="inner" id="pos-top-right"></div>
      <div class="inner" id="pos-bottom-left"></div>
      <div class="inner" id="pos-bottom-right"></div>
    </div>
    <div class="outer">
      <div class="inner" id="pos-top-left"></div>
      <div class="inner" id="pos-top-right"></div>
    </div>
    <div class="outer">
      <div class="inner" id="pos-top-left"></div>
      <div class="inner" id="pos-bottom-left"></div>
    </div>
  </body>
</html>
